Take note: When a conversation with the leader of a foreign country becomes focused on pig manure, the call you're on might not be legit.

Energy Secretary Rick Perry recently learned that the hard way when he took a call about energy policy with who he thought was Ukrainian Prime Minister Volodymyr Groysman. Well, as it turns out, Perry's 20-minute interview was actually with a pair of Russian pranksters.

Perry spoke to Vladimir Kuznetsov and Alexei Stolyarov, also known as the "Jerky Boys of Russia," about the Paris Agreement and the possibility of using a mix of home-brewed alcohol and pig manure as a power source. In the interview, Perry said he'd be interested in getting more information about the "scientific development."

The entire phone call was posted online by the Russian news site Vesti.

Energy Department spokeswoman Shaylyn Hynes confirmed to The Washington Post that Perry is the latest high-level official to fall victim to one of the duo's pranks.

“These individuals are known for pranking high level officials and celebrities, particularly those who are supportive of an agenda that is not in line with their governments. In this case, the energy security of Ukraine," Hynes told the Post.

Rep. Maxine Waters and Sen. John McCain have also fallen victim to the Russian pranksters.